Network Security

We have a Serv-U FTP server in our DMZ. When it is running, we are flooded with the messagesDeny IP due to Land Attack from 192.168.1.2 to 192.168.1.2.Does anyone know what setup in the FTP server can be causing this?

Hello to all  I did not deal with IDS in the past, nut I do now  The model in discussion is 4235.I need to reset one to factory default or at least reset the password        which probably means re-imaging.Done some reading about the issue and canno...

Hi,What would be the best place to nat  in a network.Router or ASA?Router would be terminating the ISP connection and then ASA in place.As ASA doesn't have the option of PBR.Is it would be better to have it on Router.On the other hand Wanted to run I...

Folks,I have a question about NAC behavior, when i have a Ip phone connected, my workstation never goes down because even if I turn off that workstation my swichport still on Link UP state.Does anyone know how can I get around that issue?thanks a lot

Dear allI have a ip valid range from my ispI want to nat my inside users to ip vaid range with dynamic NATmy outside asa interface has one of these ip valids to see outside worldbut the other ip in my range do not belong to any devices..how is it pos...

Hi, I have Cisco PIX 515E With Cisco PIX Security Appliance Software Version 7.0(6).We are using three interfaces. One outside, second WEB(for web server) & third DB(for database server)We have published our web server and so available from public ne...

Dear Cisco Friends,I have just purchased a SSL certificate from godaddy.com - I need to replace it with the current one which is self-signed.Can you advise me where I can get notes to install the certificate? will this effect VPN in anyway or anythin...

we have a brand new ASA 5520 and i have a very basic config on it.. the issue i am having is after i reboot the damn thing, i am able to ping and traceroute through the outside interface for about a minute and then for no apparent reason, i cant hit ...

Hello,I'm not new to cisco but i am new to firewalls and ASA.right now i have a test bed set up to test this netflow software (manageengine if that matters)I have 2 2800 series routers and 1 ASA 5505 (8.2(1) )I have it like this_pc 192.168.2.2/1_____...

This link has a good example on how to configure CISCO IOS Content Filtering http://supportforums.cisco.com/docs/DOC-8028i copied and pasted the config on to a 1941W router and it worked.  however, i found that the router could go in and out of the "...

Hey there!If i was to give someone a config to paste into an ASA, i need to know where its going to error out. For instance, where do i put my end statements and config t statements...i dont want anything to error on the pasting of this config.... He...